Overview
The AD7716BPZ, produced by Analog Devices Inc., is a highly integrated, 4-channel, 22-bit sigma-delta analog-to-digital converter (ADC) designed for data acquisition systems. This device is particularly suited for applications requiring high precision and low noise. It features on-chip digital filtering, which simplifies system design by reducing the need for external filters. The AD7716BPZ is available in a 44-lead PLCC package and operates with a supply voltage of 5V.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 22 bits |
| Number of Channels | 4 |
| Input Bandwidth | Up to 584 Hz |
| Dynamic Range | 111 dB (36.5 Hz input bandwidth), 99 dB (584 Hz input bandwidth) |
| Supply Voltage | 5V |
| Package Type | 44-Lead PLCC |
| Pin Count | 44 |
| Address Pins | 3 (allowing up to 32 channels in a system) |
| Output Word Length | 32 bits |
Key Features
- High-resolution 22-bit sigma-delta ADC with on-chip digital filtering.
- Four independent ADC channels with bandwidths up to 584 Hz.
- High dynamic range: 111 dB at 36.5 Hz and 99 dB at 584 Hz input bandwidth.
- Three address pins allowing up to 32 channels in a system.
- 32-bit output word with one bit indicating invalid data due to external signals (e.g., pacemaker pulse in ECG systems).
- Operates on a single 5V supply voltage.
Applications
- Data acquisition systems requiring high precision and low noise.
- Medical devices, such as ECG systems with pacemaker detection.
- Industrial measurement and control systems.
- Automotive and aerospace applications where high accuracy is crucial.
- Any application needing multiple channels of high-resolution analog-to-digital conversion.
Q & A
- What is the resolution of the AD7716BPZ?
The AD7716BPZ has a resolution of 22 bits. - How many channels does the AD7716BPZ support?
The AD7716BPZ supports four independent ADC channels. - What is the maximum input bandwidth of the AD7716BPZ?
The maximum input bandwidth is up to 584 Hz. - What is the dynamic range of the AD7716BPZ at different input bandwidths?
The dynamic range is 111 dB at 36.5 Hz and 99 dB at 584 Hz input bandwidth. - What type of package is the AD7716BPZ available in?
The AD7716BPZ is available in a 44-lead PLCC package. - How many address pins does the AD7716BPZ have?
The AD7716BPZ has three address pins, allowing up to 32 channels in a system. - What is the length of the output word from the AD7716BPZ?
The output word is 32 bits long. - Can the AD7716BPZ indicate invalid data due to external signals?
Yes, one bit of the output word can indicate invalid data due to external signals, such as a pacemaker pulse in ECG systems. - What is the supply voltage for the AD7716BPZ?
The supply voltage is 5V. - What are some common applications of the AD7716BPZ?
Common applications include data acquisition systems, medical devices like ECG systems, industrial measurement and control systems, and automotive and aerospace applications.
